Zhenjiang JINDA mechanical equipment Co., Ltd
The D1 EPB pipe jacking machine can be used in wide and all-range soil conditions, with either soft or hard soil.The covered depth of the pipe is minimally 1.5X the pipe diameter, while the pipe diameter is generally between 1500 to 4000mm. With shield outside lubrication, soil paste in the excavation chamber could have the equal support pressure to the surrounding soil and groundwater, so as to achieve an improved balance. With the aforesaid Soil Improvement, the risk of heave or settlement at the surface when advancing can be minimized.
Therefor the EPB Pipe Jacking Machine can minimize the ground deformation, improve the efficiency of soil conveying and excavation. The operational environment is better runand the advancing process is safer.
The EPB technology is suitable for large diameter and long distance pipe jacking.
土压平衡顶管机技术性能与特点：Technical Performance Characteristics
The EPB Pipe Jacking Machinecan be used in a wide range of soil conditions. It is applicable to sandy, gravel and pebbly topography from clay with N value close to 0 to 50. For sand layer with higher permeability, advancing is viable with the Soil Improvement and the consequent plug effect of the screw conveyor.
The EPB Pipe Jacking Machineadopts low speed and high torque transmission method, with which the cutting force of cutter is strengthened and the overload coefficient can exceed 3.
The EPB Pipe Jacking Machine comprises a separate slurry injection and shield outside lubrication system, to facilitate the Soil Improvement and hence to widen the range of the soil conditions where the it operates.
The ground settlement is small, and the covered depth of the pipe is as small as 1.5X the pipe diameter.
The EPB Pipe Jacking Machinehas a centralized supporting cutter plate, and thus has a compact and light weightedstructure, a long service life with easy maintenance requirement.
The EPB Pipe Jacking Machineexcavates soil by the screw conveyor with a high excavation power.
The EPB Pipe Jacking Machineuses an advanced control system in head bending and deflection with a Correction Angle of 2.5 °with digital display, which is easy to operate and turn. This makes the machine more reliable in advancing.